/
controller.go
170 lines (143 loc) · 5.09 KB
/
controller.go
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package controller
import (
"fmt"
"net/http"
"os"
"path/filepath"
"github.com/ds3lab/easeml/engine/api"
"github.com/ds3lab/easeml/engine/api/router"
"github.com/ds3lab/easeml/engine/database/model"
"github.com/ds3lab/easeml/engine/database/model/types"
"github.com/ds3lab/easeml/engine/logger"
"github.com/ds3lab/easeml/engine/process"
"github.com/ds3lab/easeml/engine/storage"
"github.com/ds3lab/easeml/engine/workers"
"github.com/gobuffalo/packr/v2"
)
// Start is the entry point.
func Start(context process.Context) {
log := logger.NewProcessLogger(context.DebugLog)
// Initialize the storage context.
storageContext := storage.Context{WorkingDir: context.WorkingDir}
// TODO: Move all this code to the server.
modelContext, err := model.Connect(context.DatabaseAddress, context.DatabaseName, false)
if err != nil {
log.WriteFatal(fmt.Sprintf("fatal: %+v", err))
}
defer modelContext.Session.Close()
// Initialize the database.
err = modelContext.Initialize(context.DatabaseName)
if err != nil {
log.WriteFatal(fmt.Sprintf("fatal: %+v", err))
}
// Register the new process.
var process types.Process
process, err = modelContext.StartProcess(types.ProcController)
if err != nil {
log.WriteFatal(fmt.Sprintf("fatal: %+v", err))
}
defer modelContext.SetProcessStatus(process.ID, types.ProcTerminated)
log.WithFields("process-id", process.ID.Hex(), "PID", process.ProcessID,"process-type",process.Type).WriteInfo("PROCESS STARTED")
log.ProcessID = process.ID.Hex()
//log.Prefix = fmt.Sprintf("CTL%02d", process.RunningOrinal)
// Create log file.
processPath, err := storageContext.GetProcessPath(process.ID.Hex(), "")
if err != nil {
panic(err)
}
logFilePath := filepath.Join(processPath, process.Type+".log")
logFile, err := os.OpenFile(logFilePath, os.O_WRONLY|os.O_CREATE, storage.DefaultFilePerm)
if err != nil {
panic(err)
}
log.AddJSONWriter(logFile)
defer logFile.Close()
// Log the root user in and generate their API key.
// TODO: Log out later (if no other controllers are alive).
user, err := modelContext.UserLogin()
if err != nil {
log.WriteFatal(fmt.Sprintf("fatal: %+v", err))
}
log.WithFields("api-key", user.APIKey,"process-type",process.Type).WriteInfo("ROOT USER LOGGED IN")
// Report the root API key to the API key channel.
context.RootAPIKey <- user.APIKey
// Run the downloader.
workersContext := workers.Context{
ModelContext: modelContext,
StorageContext: storageContext,
ProcessID: process.ID,
Period: context.ListenerPeriod,
Logger: log,
}
// Process keepalive goroutine.
go func() {
workersContextCopy := workersContext.Clone()
defer workersContextCopy.ModelContext.Session.Close()
workersContextCopy.ProcessKeepaliveWorker(context.KeepAlivePeriod)
}()
// Terminate dead processes.
go func() {
workersContextCopy := workersContext.Clone()
defer workersContextCopy.ModelContext.Session.Close()
workersContextCopy.TerminateDeadProcessesWorker(context.KeepAlivePeriod)
}()
// Data download worker.
go func() {
workersContextCopy := workersContext.Clone()
defer workersContextCopy.ModelContext.Session.Close()
workersContextCopy.DatasetDownloadListener()
}()
// Data unpack worker.
go func() {
workersContextCopy := workersContext.Clone()
defer workersContextCopy.ModelContext.Session.Close()
workersContextCopy.DatasetUnpackListener()
}()
// Data validate worker.
go func() {
workersContextCopy := workersContext.Clone()
defer workersContextCopy.ModelContext.Session.Close()
workersContextCopy.DatasetValidatorListener()
}()
// Module download worker.
go func() {
workersContextCopy := workersContext.Clone()
defer workersContextCopy.ModelContext.Session.Close()
workersContextCopy.ModuleDownloadListener()
}()
// Module validate worker.
go func() {
workersContextCopy := workersContext.Clone()
defer workersContextCopy.ModelContext.Session.Close()
workersContextCopy.ModuleValidateListener()
}()
// Job status maintainer worker.
go func() {
workersContextCopy := workersContext.Clone()
defer workersContextCopy.ModelContext.Session.Close()
workersContextCopy.JobStatusMaintainerListener()
}()
// Task status maintainer worker.
go func() {
workersContextCopy := workersContext.Clone()
defer workersContextCopy.ModelContext.Session.Close()
workersContextCopy.TaskStatusMaintainerListener()
}()
// Start the HTTP server. We need to reconnect as an anonimous user.
// TODO: Start actual server and handle graceful shutdown.
anonContext, err := model.Connect(context.DatabaseAddress, context.DatabaseName, true)
if err != nil {
log.WriteFatal(fmt.Sprintf("fatal: %+v", err))
}
defer anonContext.Session.Close()
// Initialize the API context and API router.
apiContext := api.Context{ModelContext: anonContext, StorageContext: storageContext, Logger: log}
apiRouter := router.New(apiContext)
http.Handle("/api/v1/", apiRouter)
// Initialize the WEB router.
box := packr.New("Frontend","../../../web/dist")
webRouter := http.FileServer(box)
http.Handle("/", webRouter)
log.WriteFatal(http.ListenAndServe(context.ServerAddress, nil).Error())
log.WriteInfo("After log")
}